// JavaScript Document text = new Array (); // ERROR HANDLING // STANDARD text.defaultMessage = 'Please specify a value greater than 0'; text.info = 'Info'; text.calculating = 'One moment please...'; // APPLICATION AND INPUTS THAT ARE ALWAYS AVAILABLE text.appTemperature = 'Please specify a value between 0° and 250°'; text.appCompression = 'Please specify a value between 0 and 50'; text.freeGrooveVolume = 'Please specify a value between 0 and 100'; text.oringCSDNom = 'Please specify a value between 0 and 25 mm'; // SELECTS text.sugg = 'sugg.'; text.free = 'free'; // ORING // PISTON, ROD text.IDStretchInput = 'Please specify a value between 0 and 15'; text.oringIDNom = 'The supplied value cannot exceed O-Ring Inner Diameter'; // GROOVE // AXIAL text.grooveODNom = 'The supplied value cannot exceed Groove Outer Diameter'; // PISTON AND ROD text.grooveDiameterNom = 'The supplied value cannot exceed Groove Diameter'; text.grooveWidthNom = 'The supplied value cannot exceed half of Groove Width'; text.boreDiameterNom = 'The supplied value cannot exceed Bore Diameter'; text.pistonDiameterNom = 'The supplied value cannot exceed Piston Diameter'; // AXIAL, PISTON AND ROD text.coefficientInput = 'Please specify a value between 0 and 500'; text.tolerance = 'The supplied value cannot exceed positive tolerance'; text.radius = 'Please specify a value between 0 and 3'; text.radiusGrooveWidth = 'The supplied value cannot exceed half of the groove width. Please check the supplied dimensions of the groove inner and outer diameter'; // RESULTS // AXIAL INNER PRESSURE text.axialORingIDStretch = 'Attention. At inner pressure the o-ring outer diameter should seat onto the outer diameter of the groove. Therefore o-ring inner diameter stretch has to be avoided'; // AXIAL OUTER PRESSURE text.oringODUpsetting = 'Attention. At outer pressure the o-ring inner diameter should seat onto the inner diameter of the groove. Therefore o-ring outer diameter upsetting has to be avoided'; // PISTON text.gapPistonBoreDiameterNom = 'Attention. Gap between Bore and Piston is too high. Too high a gap can cause extrusion of o-ring.'; // ROD text.gapRodBoreDiameterNom = 'Attention. Gap between Bore and Rod is too high. Too high a gap can cause extrusion of o-ring.'; // AXAIL, PISTON AND ROD text.oringIDStretch = 'Caution, excessive stretch may lead to premature fail or part breakage'; text.oringCSDComp = 'Caution, excessive compression may result in high compression set and possible splitting of parts'; text.oringCSDCompLow = 'Caution, the calculated o-ring cross section diameter compression is too low or negative. Too low compression can result in leakage. Please increase the compression by changing the o-ring cross section diameter or modifying the groove depth.'; text.freeGrooveVolume = 'Caution, excessive groove fill may result in decreased part life, extrusion, or part degradation'; // TOOLBAR text.missingValues = "Some of the value's are missing. Please check your provided value's"; text.designName = 'Please specify a designName'; text.deleteDesign1 = 'Your attempting to delete design'; text.deleteDesign2 = '. Do you want to continue?'; // // ERROR HANDLING // INFO BOXES // AXIAL INNER PRESSURE // RESULTS text.AIIDStretchInfo = 'Depending on the pressure direction, at axial sealing principle with inner pressure the groove/oring dimensions have to be chosen that the o-ring outer diameter seats onto the outer diameter of the groove. Therefore the o-ring inner diameter stretch has to be negative.'; text.AIODUpsettingInfo = 'Depending on the pressure direction, at axial sealing principle with inner pressure the groove/oring dimensions have to be chosen that the o-ring outer diameter seats onto the outer diameter of the groove. In most application an o-ring outer diameter upsetting of maximal 3% is permitted to ensure good sealing fit.'; // AXIAL OUTER PRESSURE // RESULTS text.AOIDStretchInfo = "Depending on the pressure direction, at axial sealing principle with outer pressure the groove/oring dimensions have to be chosen that the o-ring inner diameter seats onto the inner diameter of the groove. In most application acceptable up to 5% to ensure good sealing fit."; text.AOODUpsettingInfo = 'Depending on the pressure direction, at axial sealing principle with outer pressure the groove/oring dimensions have to be chosen that the o-ring inner diameter seats onto the inner diameter of the groove. Therefore the o-ring outer diameter upsetting has to be negative.'; // PISTON // INPUTS text.IDStretchAIInfo = 'In most applications acceptable up to approximately 5%. Excessive inner diameter stretch may lead to premature fail or part breakage. At piston sealing principles a moderate o-ring inner diameter stretch may ease assembling of the piston. Elastomers are incompressible. Upsetting of the o-ring inner diameter should therefore be avoided to prevent irregular squeeze on the o-ring. Will affect the calculated Groove Diameter due to shortening of the effective o-ring cross section diameter to maintain selected o-ring compression at installation.'; text.pistonIDStretchInfo = "In most applications acceptable up to approximately 5%. Excessive inner diameter stretch may lead to premature fail or part breakage. At piston sealing principles a moderate o-ring inner diameter stretch may ease assembling of the piston. Elastomers are incompressible. Upsetting of the o-ring inner diameter should therefore be avoided to prevent irregular squeeze on the o-ring. Will affect the calculated Groove Diameter due to shortening of the effective o-ring cross section diameter to maintain selected o-ring compression at installation."; // RESULTS text.pistonCSDCompAIInfo = "O-Ring Cross Section Diameter Compression at installation (room temperature, without chemical impact. Necessary to obtain good sealing performance of the o-ring. Rate of compression has to be a good compromise between proper contact area of the o-ring to seal and minimum friction at dynamic applications. Excessive compression may result in high compression set and possible splitting of parts. The installation properties of parts with radial compressed o-rings degrade with increased compression. Typical minimum and maximum o-ring compression values values for applications with overpressure at service are:
O-Ring Cross SectionStaticDynamic
PneumaticHydraulic
1,813,5 - 30,5 %9,5 - 25,5 %13 - 28,5 %
2,6513 - 28 %8,5 - 22 %11,5 - 24 %
3,5511,5 - 27,5 %6,5 - 20 %9,5 - 23 %
5,311 - 26 %5,5 - 17 %9 - 20,5 %
710,5 - 24 %5 - 15,5 %9 - 19,5 %
"; text.pistonCSDCompASInfo = "O-Ring Cross Section Diameter Compression at service. Thermal expansion of o-ring and parts and chemical volume swell/shrinkage of o-ring are in consideration. Necessary to obtain good sealing performance of the o-ring. Rate of compression has to be a good compromise between proper contact area of the o-ring to seal and minimum friction at dynamic applications. Excessive compression may result in high compression set and possible splitting of parts. The installation properties of parts with radial compressed o-rings degrade with increased compression. Typical minimum and maximum o-ring compression values for applications with overpressure at service are:
O-Ring Cross SectionStaticDynamic
PneumaticHydraulic
1,813,5 - 30,5 %9,5 - 25,5 %13 - 28,5 %
2,6513 - 28 %8,5 - 22 %11,5 - 24 %
3,5511,5 - 27,5 %6,5 - 20 %9,5 - 23 %
5,311 - 26 %5,5 - 17 %9 - 20,5 %
710,5 - 24 %5 - 15,5 %9 - 19,5 %
"; // ROD // RESULTS text.rodCSDCompAIInfo = "O-Ring Cross Section Diameter Compression at installation (room temperature, without chemical impact. Necessary to obtain good sealing performance of the o-ring. Rate of compression has to be a good compromise between proper contact area of the o-ring to seal and minimum friction at dynamic applications. Excessive compression may result in high compression set and possible splitting of parts. The installation properties of parts with radial compressed o-rings degrade with increased compression. Typical minimum and maximum o-ring compression values for applications with overpressure at service are:
O-Ring Cross SectionStaticDynamic
PneumaticHydraulic
1,811 - 27 % 5 - 19,5 % 10,5 - 25 %
2,6510,5 - 25,5 % 4 - 16 % 9 - 21 %
3,5510 - 24,5 % 3 - 14,5 % 8 - 19 %
5,39,5 - 23 % 3 - 13,5 % 7 - 17 %
79 - 20,5 % 3 - 13 % 7 - 16,5 %
"; text.rodCSDCompASInfo = "O-Ring Cross Section Diameter Compression at service. Thermal expansion of o-ring and parts and chemical volume swell/shrinkage of o-ring are in consideration. Necessary to obtain good sealing performance of the o-ring. Rate of compression has to be a good compromise between proper contact area of the o-ring to seal and minimum friction at dynamic applications. Excessive compression may result in high compression set and possible splitting of parts. The installation properties of parts with radial compressed o-rings degrade with increased compression. Typical minimum and maximum o-ring compression values values for applications with overpressure at service are:
O-Ring Cross Section StaticDynamic
PneumaticHydraulic
1,811 - 27 % 5 - 19,5 % 10,5 - 25 %
2,6510,5 - 25,5 % 4 - 16 % 9 21 %
3,5510 - 24,5 % 3 - 14,5 % 8 - 19 %
5,39,5 - 23 % 3 - 13,5 % 7 - 17 %
79 - 20,5 % 3 - 13 % 7 - 16,5 %
"; text.rodIDStretchInfo = "In most applications acceptable up to approximately 5%. Excessive inner diameter stretch may lead to premature fail or part breakage. At rod sealing principles a high o-ring inner diameter stretch may lead to difficulties by assembling the rod."; // AXIAL // RESULTS text.axialCSDCompAIInfo = 'O-Ring Cross Section Diameter Compression at installation (room temperature, without chemical impact. Necessary to obtain good sealing performance of the o-ring. Rate of compression has to be a good compromise between proper contact area of the o-ring to seal and minimum friction at dynamic applications. Excessive compression may result in high compression set and possible splitting of parts. The installation properties of parts with radial compressed o-rings degrade with increased compression. Typical minimum and maximum o-ring compression values values for applications with overpressure at service are:
O-Ring Cross SectionO-Ring Compression (Static)
1,823,5 - 31,5 %
2,6522 - 25,5 %
3,5520 - 22,5 %
5,318 - 20 %
717 - 18,5 %
'; text.axialCSDCompASInfo = 'O-Ring Cross Section Diameter Compression at service. Thermal expansion of o-ring and parts and chemical volume swell/shrinkage of o-ring are in consideration. Necessary to obtain good sealing performance of the o-ring. Rate of compression has to be a good compromise between proper contact area of the o-ring to seal and minimum friction at dynamic applications. Excessive compression may result in high compression set and possible splitting of parts. The installation properties of parts with radial compressed o-rings degrade with increased compression. Typical minimum and maximum o-ring compression values values for applications with overpressure at service are:
O-Ring Cross Section (Static)
1,823,5 - 31,5 %
2,6522 - 25,5 %
3,5520 - 22,5 %
5,318 - 20 %
717 - 18,5 %
'; // PISTON AND ROD // INPUTS text.appMovementInfo = "Movement static or dynamic. Dynamic o-ring applications need less o-ring compression than static to prevent abrasion and premature fail. Typical minimum and maximum o-ring compression values for applications with overpressure at service are:
O-Ring Cross Section StaticDynamic
PneumaticHydraulic
1,811 - 27 % 5 - 19,5 % 10,5 - 25 %
2,6510,5 - 25,5 % 4 - 16 % 9 - 21 %
3,5510 - 24,5 % 3 - 14,5 % 8 - 19 %
5,39,5 - 23 % 3 - 13,5 % 7 - 17 %
79 - 20,5 % 3 - 13 % 7 - 16,5 %
"; // RESULTS text.depthASInfo = 'Groove depth including gap at installation.'; text.sealingGapASInfo = 'An o-ring seals through the deformation of the seal material by installation and media pressure to close off the gap between mating components. Higher system pressures can cause deformation through the gap, known as extrusion, resulting in seal failure. Choosing a harder seal material or installing back-up rings to support the oring may alleviate this problem. Typical max. acceptable sealing gap for NBR at room temperature: '; // AXIAL, PISTON AND ROD // INPUTS text.appTemperatureInfo = 'Temperature at the o-ring at service. The temperature has an impact on the o-ring compression and groove volume due to thermal expansion of the o-ring and groove material. Typical maximum service temperatures of the selectable o-rings compounds are as follows:
CompoundMax. Service Temp. (°C)*
CR+120 °C
CSM+130 °C
EPDM+150 °C
FKM+200 °C
FVMQ+230 °C
HNBR+150 °C
IIR+120 °C
NBR+120 °C
NR+80 °C
PUR+80 °C
SBR+100 °C
VMQ+230 °C
'; text.appPressureInfo = 'Overpressure or vacuum. At vacuum, a higher o-ring compression has to be chosen to reduce the o-ring compound permeability by increasing the path the gas has to travel (width of o-ring). A compression of at least 25-30% in static vacuum applications can help also to absorb irregularities of the groove and bore/rod surface.'; text.appCompressionInfo = 'The tendency of an o-ring to return to its original shape when the cross section is deflected is the basic reason why o-rings make excellent seals. The squeeze or rate of compression is a major consideration in o-ring seal design. Elastomers may take up the stack-up of tolerances of the unit and its memory maintains a sealed condition. O-rings with smaller cross sections are squeezed by a higher percentage to overcome the relatively higher groove dimension tolerances. Typical minimum and maximum o-ring compression values values for applications with overpressure at service are:
O-Ring Cross Section O-Ring Compression (Static)
1,823,5 - 31,5 %
2,65 22 - 25,5 %
3,5520 - 22,5 %
5,318 - 20 %
717 - 18,5 %
Please bear in mind that the "O-Ring Installation Compression" used for calculating the o-ring/groove dimensions is based on room temperature and do not consider higher or lower temperature or chemical volume swell of the o-ring compound.'; text.freeGrooveVolumeInfo/*design groove*/ = 'Percentage of nominal free groove volume at installation (room temperature without impact of chemical volume swell/shrinkage). Free groove volume is needed to prevent 100% groove filling and extrusion of o-ring due to thermal expansion and/or swelling. Overfill of the groove (negative free groove volume) has to be avoid also under unfavourable tolerance conditions.'; text.materialInfo = 'Material of the groove. Depending on the selection the proper thermal expansion will be used for calculating results at service.'; text.compoundInfo = 'Material of the o-ring. Depending on the selection, the proper thermal expansion will be used for calculating results at service.'; text.chemVolSwellInfo = 'Chemical volume swell (or shrinkage if the value is negative). Due to the very big variety of chemicals which may have different impacts on the elastomer this value will only be used to calculate the remaining free groove volume at installation. Please bear in mind that swelling of the o-ring may rise the o-ring cross section compression and increase the contact area of the o-ring and the sealed surface. Shrinkage can decrease the o-ring cross section compression and has to be avoid while choosing a proper compound'; text.oringChemVolSwellAInfo/*input o-ring + groove*/ = 'Swell or shrinkage (if entered value is negative) due to chemical impact of the medium. Use ideally tested values or reference lists to determine the percentage of volume swell/shrinkage.'; text.oringChemVolSwellBInfo/*design groove / design o-ring*/ = 'Swell or shrinkage (if entered value is negative) of the o-ring volume due to chemical impact of the medium. Use ideally tested values or reference lists to determine the percentage of volume swell/shrinkage. Please bear in mind that this value will not be used to calculate o-ring/groove dimensions but for calculating results at service which may change.'; // RESULTS text.resultAIInfo/*design groove/ design o-ring*/ = 'Results at installation - at room temperature without chemical impact. Used for calculating nominal o-ring/groove dimensions.'; text.resultASInfo = 'Results at service taking into consideration of temperature and chemical volume swell/shrinkage of the o-ring compound. Calculated "nominal" values are based on entered dimensions without tolerance.'; text.freeGrooveVolumeAIInfo/*design groove/ design o-ring*/ = 'Free Groove Volume at installation (room temperature, without chemical impact). Necessary to obtain free space for expansion of the o-ring volume due to temperature and/or chemical swelling. Elasomers are incompressible. If elastomeric o-rings overfill the groove they will extrude into the gap or break. Negative free groove volume has to be avoided also under unfavourable tolerance conditions.'; text.freeGrooveVolumeASInfo = 'Free Groove Volume at service. Thermal expansion of o-ring and parts and chemical volume swell/shrinkage of o-ring are in consideration. Necessary to obtain free space for expansion of the o-ring volume due to temperature and/or chemical swelling. Elastomers are incompressible. If elastomeric o-rings overfill the groove they will extrude into the gap or break. Negative free groove volume has to be avoided also under unfavourable tolerance conditions.'; // // INFO BOXES /* STANDRADR ORINGS */ text.stndORTitle = 'Standard O-Ring'; text.stndORInfo = 'Please get in contact with your local ERIKS branch for information on current stock of the listed o-rings'; text.stndORSearch = 'search'; text.stndORpartNumber = 'Partnumber'; text.stndORinnerDiameter = 'Inner Diameter'; text.stndORCrossSectionDiameter = 'Cross Section Diameter'; text.stndORCompound = 'Compound'; text.stndORCompoundNumber = 'Compoundnumber'; text.stndORDescription = 'Description'; text.shown = 'Available Standard O-Rings: '; text.stndORLoad = 'load'; text.stndORNothingFound = 'There are no standard O-Rings found. Please specify a different value for the inner diameter or cross section diameter.'; /* // STANDRADR ORINGS */ /* * Messages */ text.preferredLanguageChanged = 'Your preferred language is not the current language of this application. If you want to change the language of the application, you can refresh the browser. However, all current information will be lost!'